package ooday01;

/**
 * 说明:
 *
 * @author:SuZhongHe
 * @date:2023/2/21
 **/
public class ConsDemo {
    public static void main(String[] args) {
        Student zs= new Student();
        Student ls = new Student("张三",28);
        Student ww = new Student("王五",22,"jsd","001");
        zs.sayHi();
        ls.sayHi();
        ww.sayHi();

    }
}
